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78798 (2002 XW85)
Classification: Main-belt Asteroid          SPK-ID: 2078798
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1441659899639284 3.5364e-08  
a 2.269331799651309 1.0353e-08 au
q 1.942171334197955 8.0671e-08 au
i 7.835062307619708 4.4198e-06 deg
node 52.09507562914045 3.0685e-05 deg
peri 255.8174239114265 3.459e-05 deg
M 164.5847520130221 1.5811e-05 deg
tp 2458429.636176720281
(2018-Nov-07.13617672)
5.4568e-05 TDB
period 1248.663523607817
3.42
8.5445e-06
2.339e-08
d
yr
n .2883082537398359 1.9729e-09 deg/d
Q 2.596492265104663 1.1845e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1211  
   data-arc span      8071 days (22.10 yr)  
   first obs. used      1998-09-24  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55022  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:25:28  

Additional Information
 Earth MOID = .945321 au 
 Jupiter MOID = 2.64491 au 
 T_jup = 3.588 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO453210  

78798 (2002 XW85)          Discovered 2002-Dec-11 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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